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tools lib traceevent: Add support to show migrate disable counter 

The RT kernel added a migrate disable counter in all events. Add
support to show this in the latency format.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/n/tip-l6ulxyda952g7kua4pfsh73k@git.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Steven Rostedt 2012-05-22 14:52:40 +09:00 committed by Namhyung Kim
parent c2e6dc2b26
commit 0866a97eb7
1 changed files with 38 additions and 19 deletions
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57
tools/lib/traceevent/event-parse.c
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@ -2884,7 +2884,7 @@ static int get_common_info(struct pevent *pevent,
event = pevent->events[0];
field = pevent_find_common_field(event, type);
if (!field)
die("field '%s' not found", type);
return -1;
*offset = field->offset;
*size = field->size;
@ -2935,15 +2935,16 @@ static int parse_common_flags(struct pevent *pevent, void *data)
static int parse_common_lock_depth(struct pevent *pevent, void *data)
{
int ret;
return __parse_common(pevent, data,
&pevent->ld_size, &pevent->ld_offset,
"common_lock_depth");
}
ret = __parse_common(pevent, data,
&pevent->ld_size, &pevent->ld_offset,
"common_lock_depth");
if (ret < 0)
return -1;
return ret;
static int parse_common_migrate_disable(struct pevent *pevent, void *data)
{
return __parse_common(pevent, data,
&pevent->ld_size, &pevent->ld_offset,
"common_migrate_disable");
}
static int events_id_cmp(const void *a, const void *b);
@ -3988,10 +3989,13 @@ void pevent_data_lat_fmt(struct pevent *pevent,
struct trace_seq *s, struct pevent_record *record)
{
static int check_lock_depth = 1;
static int check_migrate_disable = 1;
static int lock_depth_exists;
static int migrate_disable_exists;
unsigned int lat_flags;
unsigned int pc;
int lock_depth;
int migrate_disable;
int hardirq;
int softirq;
void *data = record->data;
@ -3999,18 +4003,26 @@ void pevent_data_lat_fmt(struct pevent *pevent,
lat_flags = parse_common_flags(pevent, data);
pc = parse_common_pc(pevent, data);
/* lock_depth may not always exist */
if (check_lock_depth) {
struct format_field *field;
struct event_format *event;
check_lock_depth = 0;
event = pevent->events[0];
field = pevent_find_common_field(event, "common_lock_depth");
if (field)
lock_depth_exists = 1;
}
if (lock_depth_exists)
lock_depth = parse_common_lock_depth(pevent, data);
else if (check_lock_depth) {
lock_depth = parse_common_lock_depth(pevent, data);
if (lock_depth < 0)
check_lock_depth = 0;
else
lock_depth_exists = 1;
}
/* migrate_disable may not always exist */
if (migrate_disable_exists)
migrate_disable = parse_common_migrate_disable(pevent, data);
else if (check_migrate_disable) {
migrate_disable = parse_common_migrate_disable(pevent, data);
if (migrate_disable < 0)
check_migrate_disable = 0;
else
migrate_disable_exists = 1;
}
hardirq = lat_flags & TRACE_FLAG_HARDIRQ;
softirq = lat_flags & TRACE_FLAG_SOFTIRQ;
@ -4029,6 +4041,13 @@ void pevent_data_lat_fmt(struct pevent *pevent,
else
trace_seq_putc(s, '.');
if (migrate_disable_exists) {
if (migrate_disable < 0)
trace_seq_putc(s, '.');
else
trace_seq_printf(s, "%d", migrate_disable);
}
if (lock_depth_exists) {
if (lock_depth < 0)
trace_seq_putc(s, '.');